Droid sans Tweak Tools Lite is a utility that activates a yet-to-be supported window transition effect in the Android OS. You can control the speed of the window slide, as well as window fade speed (effect you see when notifications pop in and out). You also have the option to turn it all off and go back to the boring way you were before but I bet you won't.

For icing on the cake, Tweak Tools Lite also lets you deactivate your data connection for those not on a all-you-can eat data plan. I've not tested this since I have unlimited data, but I did demo the transition effect for you below.

Note that there is another app in the Market called Tweak Tools, which does other things (written by the same dev) but only runs on rooted (modded RC29 or RC30) G1 units.
DroidSans

Oh Hai! I'm Nate and I live in the sometimes beautiful, always exciting, city of Buffalo, NY. I'm not too focused on this blog, but you'll probably end up reading something about Buffalo, my toy obsession, burly bears, club drama, Google Android, and some damn good music. This is my blog. Read it. Cheers.